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Finding the Fourth Proportional to 553,679,460.80, 830,519,191.20 and 144,776,945.60

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Solution

The fourth proportional to 553,679,460.80, 830,519,191.20 and 144,776,945.60 is: 217,165,418.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,679,460.80 : 830,519,191.20 = 144,776,945.60 : x
  2. Step 2: Convert to fraction form
    553,679,460.80/830,519,191.20 = 144,776,945.60/x
  3. Step 3: Cross multiply
    553,679,460.80x = 830,519,191.20 × 144,776,945.60
  4. Step 4: Simplify right side
    553,679,460.80x = 120,240,031,764,118,400
  5. Step 5: Solve for x
    x = 120,240,031,764,118,400/553,679,460.80
  6. Step 6: Final answer
    x = 217,165,418.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.